CN109038852A - It is a kind of can intelligent tuning energy wireless transmitting system - Google Patents
It is a kind of can intelligent tuning energy wireless transmitting system Download PDFInfo
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- CN109038852A CN109038852A CN201810888666.3A CN201810888666A CN109038852A CN 109038852 A CN109038852 A CN 109038852A CN 201810888666 A CN201810888666 A CN 201810888666A CN 109038852 A CN109038852 A CN 109038852A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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Abstract
It is of the invention it is a kind of can the energy wireless transmitting system of intelligent tuning belong to energy radio transmission technical field.Structure has AC-DC converting unit (2), inverter circuit (3), transmitting coil (4), tuning circuit (5), feedback unit (6), control unit (7) receiving coil (8) and pressure stabilizing current rectifying and wave filtering circuit (9).The present invention makes transmitting unit be in resonant state always by intelligent tuning network, improves system efficiency of transmission, effectively reduces receiving coil position, distance and load internal resistance size influence caused by the efficiency of transmission of total system.
Description
Technical field
The invention belongs to energy radio transmission technical field, in particular to it is a kind of can the energy of intelligent tuning be wirelessly transferred system
System.
Background technique
With the continuous development of energy Radio Transmission Technology, role is more and more important in people's lives；It is small to arrive
Home electric arrives greatly the fields such as industrial equipment and medical electronics, and energy is wirelessly transferred the stage for having climbed up history science and technology,
And its great function and significance will be played.
Although energy wireless transmission has gradually entered into people's lives and will play its huge effect, adjoint simultaneously
It there are also itself many problems；So far, the space that transmission range, the efficiency of transmission of energy wireless transmission are still improved,
So solving its transmission range and efficiency of transmission becomes the emphasis studied instantly.
Science and technology is constantly progressive, and the wireless transmission of magnetic coupling resonance formula energy has medium transmission range, and structure increases
Tuning network can realize leakage inductance compensation and frequency compensation, to improve transmission range and efficiency of transmission；But in practical applications, by
It is not capable of fixing in the position and distance of transmitting unit and receiving unit, causes mutual inductance parameter to change, make transmitting unit and connect
It receives unit and is unable to resonance, transmission range and efficiency of transmission are severely impacted；In addition, the disunity of load parameter will also result in
Upper influence.
Summary of the invention
The object of the present invention is to overcome deficiency existing for background technique, provide it is a kind of can the energy of intelligent tuning wirelessly pass
Defeated system when system initialization, successively changes the parameter of compensation network, and detects to transmitting coil voltage peak, selects
The maximum compensation scheme of transmitting coil peak value can be made by taking, to effectively improve energy wireless transmission distance and efficiency of transmission.
Above-mentioned purpose is realized by following technical scheme:
It is a kind of can intelligent tuning energy wireless transmitting system, structure have AC-DC converting unit 2, inverter circuit 3, transmitting
Coil 4, receiving coil 8 and pressure stabilizing current rectifying and wave filtering circuit 9；It is characterized in that, there are also tuning circuit 5, feedback unit 6 and controls for structure
Unit 7 processed；
The input terminal of the AC-DC converting unit 2 is connected with alternating current 1, the input terminal phase of output end and inverter circuit 3
Even, the output end of inverter circuit 3 is connected with transmitting coil 4, transmitting coil 4 also with the input terminal and feedback of tuning circuit 5
The input terminal of member 6 is connected, and the output end of feedback unit 6 and enable end are connected with the input terminal of control unit 7 and control terminal respectively,
The output end of control unit 7 is connected with the input terminal of tuning circuit 5；The input of the connection pressure stabilizing current rectifying and wave filtering circuit 9 of receiving coil 8
The output end at end, pressure stabilizing current rectifying and wave filtering circuit 9 is connected with load 10；Transmitting coil 4 is for emitting wireless energy, receiving coil 8
For receiving the wireless energy of the transmitting of transmitting coil 4；
The structure of the feedback unit 6 is that input terminal of 1 port of relay K1 as feedback unit 6 is denoted as port
In_Volt is connected with transmitting coil 4, and enable end of 3 ports of relay K1 as feedback unit 6 is denoted as port S_Drive,
It is connected with the control terminal of control unit 7；2 ports of relay K1 are connected with diode D1 anode；4 ports of relay K1 connect
Power supply VCC；Diode D1 cathode connects one end of one end of resistance R1, the one end resistance R2 and capacitor C1；The resistance R1 other end and
The other end of capacitor C1 is grounded GND；The resistance R2 other end connects one end of resistance R3 and one end of capacitor C2, and as feedback
The output end of member 6, is denoted as port Out_Volt, is connected with the input terminal of control unit 7；The other end of resistance R3 is with capacitor C2's
Other end ground connection；
The structure of the control unit 7 is that the output end of analog-digital converter 707 is connected with single-chip microcontroller 701, and input terminal is made
For the input terminal of control unit 7, be connected with the output end (i.e. port Out_Volt) of feedback unit 6, single-chip microcontroller 701 also respectively with
First control circuit 703, second control circuit 704, third control circuit 705, the 4th control circuit 706, the 5th control circuit
702 input terminal is connected；Control terminal of the output end of 5th control circuit 702 as control unit 7, with making for feedback unit 6
Energy end (i.e. port S_Drive) is connected, first control circuit 703, second control circuit 704, third control circuit the 705, the 4th
Four output ends of the output end (the port Out_Drive of i.e. each control circuit) of control circuit 706 as control unit 7,
It is connected respectively with four input terminals of tuning circuit 5 (i.e. port D_A, port D_B, port D_C, port D_D)；
In control unit 7, the first control circuit 703, second control circuit 704, third control circuit 705,
4th control circuit 706, the structure of the 5th control circuit 702 are all the same, specifically, one end of one end of resistance R4 and capacitor C3
Be connected, as the input terminal of control circuit, be denoted as port In_Con, be connected with single-chip microcontroller 701, the other end of resistance R4 with it is luminous
The anode of diode D2 is connected, and the other end of capacitor C3 is connected with the cathode of light emitting diode D2, and is grounded；Photodiode D3
Plus earth, one end of cathode connecting resistance R12, another termination power VCC1 of resistance R12；The power supply of operational amplifier U1A is just
Termination power VCC1, negativing ending grounding GND；Operational amplifier U1A non-inverting input terminal is grounded by resistance R5, inverting input terminal connection
One end of resistance R6 and one end of resistance R7, resistance R6 other end ground connection, another termination operational amplifier U1A output of resistance R7
End；Operational amplifier U1A output end connects one end of capacitor C4, one end of resistance R8, one end of resistance R9 and transistor Q1 base
Pole, the other end of capacitor C4, the other end of resistance R8 are grounded, another termination power VCC1 of resistance R9；Transistor Q1 emitter string
Join resistance R10 and be grounded GND, collector series resistance R11 meets power supply VCC1；The one end capacitor C5 connects power supply VCC1, another termination
Ground GND；Operational amplifier U1B power supply positive termination power VCC2, negativing ending grounding GND；The series connection of operational amplifier U1B non-inverting input terminal
Resistance R13 connects transistor Q1 collector；Operational amplifier U1B inverting input terminal connect resistance R14 one end and resistance R15 one
End, the resistance R14 other end are grounded GND, another termination operational amplifier U1B output end of resistance R15, operational amplifier U1B output
End connection one end capacitor C7, the capacitor C7 other end are grounded GND；The one end capacitor C6 connects power supply VCC2, and the other end is grounded GND；Fortune
Output end of the amplifier U1B output end as control circuit is calculated, port Out_Drive is denoted as；
The structure of the tuning circuit 5 is that the one end capacitor C8 is connected with the source electrode of field-effect tube T6 and field-effect tube T2,
The other end is connected with the source electrode of field-effect tube T3 and field-effect tube T4, and an output end as tuning circuit 5, is denoted as port
Another output of the drain electrode of L+, field-effect tube T6 as tuning circuit 5, is denoted as port L-, port L+ and port L- difference
It is connected with the both ends of transmitting coil 4, one end of the grid connection capacitor C9 of field-effect tube T6 and one end of resistance R16, and conduct
First input terminal of tuning circuit 5 is denoted as port D_A, the other end of capacitor C9 and another termination port L- of resistance R16；
Field-effect tube T2 grid connects one end of capacitor C11 and one end of resistance R17, and and second input as tuning circuit 5
End, is denoted as port D_B, and the drain electrode of field-effect tube T2 connects the one end capacitor C10, the capacitor C10 other end, the capacitor C11 other end, electricity
Hinder R17 other end connectivity port L-；One end of the grid connection capacitor C12 of field-effect tube T3 and one end of resistance R19, and conduct
The third input terminal of tuning circuit 5, is denoted as port D_C, and the drain electrode of field-effect tube T3 connects the one end resistance R18；Resistance R18 is another
One end, the capacitor C12 other end, resistance R19 other end connectivity port L-；One end of the grid connection capacitor C14 of field-effect tube T4
With one end of resistance R20, and the 4th input terminal as tuning circuit 5 is denoted as port D_D, and the drain electrode of field-effect tube T4 connects
Meet the one end capacitor C13, the capacitor C13 other end, the capacitor C14 other end, resistance R20 other end connectivity port L-.
The AC-DC converting unit 2 can be any circuit that 220V 50Hz alternating current can be converted into direct current,
It is preferred that output DC voltage 200V.
The inverter circuit 3 can be any circuit that direct current can be converted into high-frequency alternating current, preferably output frequency
Rate 50kHz.
The invention has the following beneficial effects:
1, the present invention makes transmitting unit be in resonant state always by intelligent tuning network, improves system efficiency of transmission.
2, the coordination network in the present invention, which is not only realized, adjusts to the positive of capacitor and (increases capacitor), and can be reversed
It adjusts and (reduces capacitor), improve adjustable range.
3, the feedback unit 6 in the present invention devises ena-bung function, after system carries out steady operation, can pass through control
Unit is turned off, and reduces influence when working normally to transmitting coil.
4, tuning network of the invention can be easily extended according to not homologous ray, select Reasonable Parameters realization pair
The control of degree of regulation.
5, feedback unit of the invention is effectively in conjunction with transmitting coil, and accurate to extract transmitting coil peak value, raising is fed back
Performance simultaneously reduces system cost.
6, the present invention can reduce the transmission of receiving end receiving coil position, distance and load internal resistance size to total system
It is influenced caused by efficiency.
7, the present invention can further realize the compatibility between the wireless charging system of different size.
Detailed description of the invention:
Fig. 1 is overall structure block diagram of the invention.
Fig. 2 is the circuit diagram of feedback unit of the invention.
Fig. 3 is the structural block diagram of control unit of the invention.
Fig. 4 is the schematic diagram of property control circuit in control unit of the invention.
Fig. 5 is the circuit diagram of tuning circuit of the invention.
Specific embodiment
The overall structure of the invention of embodiment 1
Overall structure block diagram of the present invention is as shown in Figure 1:
The input terminal of AC-DC converting unit 2 is connected with alternating current 1, and output end is connected with the input terminal of inverter circuit 3, inversion
The output end of circuit 3 is connected with transmitting coil 4, and transmitting coil 4 is also defeated with the input terminal of tuning circuit 5 and feedback unit 6
Enter end to be connected, the output end of feedback unit 6 and enable end are connected with the input terminal of control unit 7 and control terminal respectively, and control is single
The output end of member 7 is connected with the input terminal of tuning circuit 5；Receiving coil 8 connects the input terminal of pressure stabilizing current rectifying and wave filtering circuit 9, surely
The output end of current rectifying and wave filtering circuit 9 is pressed to be connected with load 10；Transmitting coil 4 is for emitting wireless energy, and receiving coil 8 is for connecing
Receive the wireless energy that transmitting coil 4 emits.
Alternating current in alternating current 1 is converted to direct current by AC-DC converting unit 2, using inverter circuit 3 that direct current is inverse
Become the alternating current of required frequency；Tuning circuit 5 is in parallel with transmitting coil 4, is fed back resonant state by opening feedback unit 6
To control unit 7, control unit 7, which controls the tuning circuit 5 in parallel with transmitting coil 4, reduces the impedance of magnetic coupler element, makes to send out
It penetrates unit and is in resonant state always, alternating electromagnetic field is generated by the transmitting coil 4 of magnetic coupler element；Receiving unit is by intrinsic frequency
The identical receiving coil 8 of rate is generated with transmitting coil 4 resonates and receives energy, will exchange using pressure stabilizing current rectifying and wave filtering circuit 9
Direct current needed for electricity is changed into load 10, realizes the wireless transmission of energy.
Wherein AC-DC converting unit 2 belongs to custom circuit, and can be selected any can be converted into 220V 50Hz alternating current directly
The circuit design of galvanic electricity；Inverter circuit 3 is the common circuit in wireless energy transfer field, can be selected it is any can by DC voltage turn
Change the circuit design of high frequency sinusoidal alternating current wave into；Receiving coil 8, pressure stabilizing current rectifying and wave filtering circuit 9 and load 10 are in reception dress
In setting, it is not belonging to structure of the invention.
2 feedback unit of embodiment
The circuit structure of the feedback unit 6 as shown in Fig. 2, relay K1 input of 1 port as feedback unit 6
End, is denoted as port In_Volt, is connected with transmitting coil 4, enable end of 3 ports of relay K1 as feedback unit 6 is denoted as
Port S_Drive is connected with the control terminal of control unit 7；2 ports of relay K1 are connected with diode D1 anode；Relay
4 ports of K1 connect power supply VCC；Diode D1 cathode connects one end of one end of resistance R1, the one end resistance R2 and capacitor C1；Electricity
The other end for hindering the R1 other end and capacitor C1 is grounded GND；The resistance R2 other end connects one end of resistance R3 and one end of capacitor C2,
And the output end as feedback unit 6, it is denoted as port Out_Volt, is connected with the input terminal of control unit 7；Resistance R3's is another
End and the other end of capacitor C2 are grounded.
This structure, which will test the voltage peak of transmitting coil 4 and will test the modulus that result is sent in control unit 7, to be turned
Parallel operation is input to single-chip microcontroller 701 after being converted into digital signal；This structure transmitting coil 4 and tuning circuit suitable for transmitting unit
5 situations in parallel；Port S_Drive is the enabled control terminal of this circuit, can control feedback by the control terminal of control unit 7
The opening and closing of unit 6；This structure has the characteristics that small to system interference, feedback accuracy is high.
3 control unit of embodiment
The structure of the control unit 7 as shown in figure 3, the output end of analog-digital converter 707 is connected with single-chip microcontroller 701,
Input terminal of the input terminal as control unit 7 is connected with the output end (i.e. port Out_Volt) of feedback unit 6, single-chip microcontroller 701
Also respectively with first control circuit 703, second control circuit 704, third control circuit 705, the 4th control circuit the 706, the 5th
The input terminal of control circuit 702 is connected；Control terminal of the output end of 5th control circuit 702 as control unit 7, with feedback
The enable end (i.e. port S_Drive) of member 6 is connected, first control circuit 703, second control circuit 704, third control circuit
705, four as control unit 7 of the output end (the port Out_Drive of i.e. each control circuit) of the 4th control circuit 706
Output end is connected with four input terminals of tuning circuit 5 (i.e. port D_A, port D_B, port D_C, port D_D) respectively.
The first control circuit 703, second control circuit 704, third control circuit 705, the 4th control circuit
706, the structure of the 5th control circuit 702 is all the same, as shown in figure 4, one end of resistance R4 is connected with one end of capacitor C3, as
The input terminal of control circuit is denoted as port In_Con, is connected with single-chip microcontroller 701, the other end and light emitting diode D2 of resistance R4
Anode be connected, the other end of capacitor C3 is connected with the cathode of light emitting diode D2, and is grounded；Photodiode D3 anode connects
Ground, one end of cathode connecting resistance R12, another termination power VCC1 of resistance R12；The power supply of operational amplifier U1A just terminates electricity
Source VCC1, negativing ending grounding GND；Operational amplifier U1A non-inverting input terminal is grounded by resistance R5, and inverting input terminal connects resistance R6
One end and resistance R7 one end, the resistance R6 other end ground connection, another termination operational amplifier U1A output end of resistance R7；Operation
Amplifier U1A output end connects one end of capacitor C4, one end of resistance R8, one end of resistance R9 and transistor Q1 base stage, capacitor
The other end of C4, the other end of resistance R8 are grounded, another termination power VCC1 of resistance R9；Transistor Q1 emitter series resistance
R10 is grounded GND, and collector series resistance R11 meets power supply VCC1；The one end capacitor C5 connects power supply VCC1, and the other end is grounded GND；
Operational amplifier U1B power supply positive termination power VCC2, negativing ending grounding GND；Operational amplifier U1B non-inverting input terminal series resistance
R13 connects transistor Q1 collector；Operational amplifier U1B inverting input terminal connects one end of resistance R14 and one end of resistance R15,
The resistance R14 other end is grounded GND, another termination operational amplifier U1B output end of resistance R15, and operational amplifier U1B output end connects
The one end capacitor C7 is connect, the capacitor C7 other end is grounded GND；The one end capacitor C6 connects power supply VCC2, and the other end is grounded GND；Operation is put
Big output end of the device U1B output end as control circuit, is denoted as port Out_Drive.
Control unit 7 is reached by control of the chip microcontroller to switching tube in tuning circuit 5 to electric in tuning circuit 5
The control of capacitance；By constantly changing capacitance, make transmitting unit resonance frequency matches working frequency, then to feedback unit 6
Crest voltage sampled, the final capacitance determined in tuning circuit 5 corresponding to peak-peak, and controlling in this state
Work；In each control circuit, it is optically coupled by increasing D2, D3, prevents secondary circuit defeated to the control of control unit 6
It interferes out；U1A amplifies input signal, and Q1 amplifies electric current, and U1B amplifies driving power.Control unit 7 is also to feedback unit 6 simultaneously
Enable end controlled, to realize the opening and closing of feedback unit 6.
4 tuning circuit of embodiment
The structure of the tuning circuit 5 as shown in figure 5, the one end capacitor C8 and field-effect tube T6 and field-effect tube T2 source
Extremely it is connected, the other end is connected with the source electrode of field-effect tube T3 and field-effect tube T4, and an output end as tuning circuit 5,
It is denoted as port L+, another output of the drain electrode of field-effect tube T6 as tuning circuit 5 is denoted as port L-, port L+ and end
Mouthful L- is connected with the both ends of transmitting coil 4 respectively, the grid of field-effect tube T6 connect capacitor C9 one end and resistance R16 one
End, and first input terminal as tuning circuit 5, are denoted as port D_A, the other end of capacitor C9 and the other end of resistance R16
Meet port L-；Field-effect tube T2 grid connects one end of capacitor C11 and one end of resistance R17, and and the as tuning circuit 5
Two input terminals, are denoted as port D_B, and the drain electrode of field-effect tube T2 connects the one end capacitor C10, the capacitor C10 other end, capacitor C11
The other end, resistance R17 other end connectivity port L-；Field-effect tube T3 grid connection capacitor C12 one end and resistance R19 one
End, and the third input terminal as tuning circuit 5, are denoted as port D_C, and the drain electrode of field-effect tube T3 connects the one end resistance R18；
The resistance R18 other end, the capacitor C12 other end, resistance R19 other end connectivity port L-；The grid of field-effect tube T4 connects capacitor
One end of C14 and one end of resistance R20, and the 4th input terminal as tuning circuit 5, are denoted as port D_D, field-effect tube T4
Drain electrode connect the one end capacitor C13, the capacitor C13 other end, the capacitor C14 other end, resistance R20 other end connectivity port L-.
Tuning circuit 5 controls the on-off of capacitor using the Sofe Switch of unique design, can have been realized by control unit 7
Effect is stablized, the control selections of safety；In addition, the adjustable range of this structure can expanding type, can be according to the tool of practical application
Body parameter and performance carry out expansion matching；The transimission power of energy wireless transmitting system can be improved using MOSFET for switching tube,
It switchs parallel resistance and capacitor between tube grid and drain electrode and constitutes absorbing circuit, electrostatic, spike interference can be prevented；T6 is used for
It controls total capacitance value to reduce, T2, T4 are for controlling total capacitance value increase；T3 controls discharge loop, deposits after preventing switching tube from disconnecting
Interference.
The present invention has the function of intelligent tuning to wireless transmitting system, and intelligent tuning structure has: transmitting coil 4, feedback
Unit 6, control unit 7, tuning circuit 5；Intelligent tuning structure is controlled when energy wireless transmitting system is opened by control unit 7
The unlatching of feedback unit 6, and control tuning circuit 5 and Auto-matching, feedback in matching process are carried out to the impedance of transmitting unit
The crest voltage of transmitting coil 4 is fed back to control unit 7 by member 6；Control unit 7 is by carrying out 6 crest voltage of feedback unit
ADC sampling, and determining in peak-peak and control tuning circuit 5 capacitance, make transmitting unit be in resonant state always.
The present invention can solve immobilize in practical applications due to the position of reception end-coil and distance, and receiving end loads
The problem of internal resistance can not be completely the same, causes transmitting terminal impedance variations.
Claims (3)
1. one kind can intelligent tuning energy wireless transmitting system, structure have AC-DC converting unit (2), inverter circuit (3), hair
Ray circle (4), receiving coil (8) and pressure stabilizing current rectifying and wave filtering circuit (9)；It is characterized in that, there are also tuning circuits (5), anti-for structure
Present unit (6) and control unit (7)；
The input terminal of the AC-DC converting unit (2) is connected with alternating current (1), the input terminal phase of output end and inverter circuit (3)
Even, the output end of inverter circuit (3) is connected with transmitting coil (4), transmitting coil (4) also with the input terminal of tuning circuit (5) with
And the input terminal of feedback unit (6) is connected, the output end of feedback unit (6) and the enable end input with control unit (7) respectively
End is connected with control terminal, and the output end of control unit (7) is connected with the input terminal of tuning circuit (5)；Receiving coil (8) connection is steady
The input terminal of current rectifying and wave filtering circuit (9) is pressed, the output end of pressure stabilizing current rectifying and wave filtering circuit (9) is connected with load (10)；Transmitting coil
(4) for emitting wireless energy, receiving coil (8) is used to receive the wireless energy of transmitting coil (4) transmitting；
The structure of the feedback unit (6) is that input terminal of 1 port of relay K1 as feedback unit (6) is denoted as port
In_Volt is connected with transmitting coil (4), and enable end of 3 ports of relay K1 as feedback unit (6) is denoted as port S_
Drive is connected with the control terminal of control unit (7)；2 ports of relay K1 are connected with diode D1 anode；The 4 of relay K1
Port connects power supply VCC；Diode D1 cathode connects one end of one end of resistance R1, the one end resistance R2 and capacitor C1；Resistance R1
The other end of the other end and capacitor C1 are grounded GND；The resistance R2 other end connects one end of resistance R3 and one end of capacitor C2, and makees
For the output end of feedback unit (6), it is denoted as port Out_Volt, is connected with the input terminal of control unit (7)；Resistance R3's is another
End and the other end of capacitor C2 are grounded；
The structure of the control unit (7) is that the output end of analog-digital converter (707) is connected with single-chip microcontroller (701), input terminal
As the input terminal of control unit (7), it is connected with the output end (i.e. port Out_Volt) of feedback unit (6), single-chip microcontroller (701)
Also respectively with first control circuit (703), second control circuit (704), third control circuit (705), the 4th control circuit
(706), the input terminal of the 5th control circuit (702) is connected；The output end of 5th control circuit (702) is as control unit (7)
Control terminal, be connected with the enable end (i.e. port S_Drive) of feedback unit (6), first control circuit (703), second control
Output end (the port of i.e. each control circuit of circuit (704), third control circuit (705), the 4th control circuit (706)
Out_Drive) as four output ends of control unit (7), respectively with four input terminal (i.e. port D_ of tuning circuit (5)
A, port D_B, port D_C, port D_D) it is connected；
In control unit (7), the first control circuit (703), second control circuit (704), third control circuit
(705), the 4th control circuit (706), the structure of the 5th control circuit (702) are all the same, specifically, one end of resistance R4 and electricity
The one end for holding C3 is connected, and as the input terminal of control circuit, is denoted as port In_Con, is connected with single-chip microcontroller (701), resistance R4's
The other end is connected with the anode of light emitting diode D2, and the other end of capacitor C3 is connected with the cathode of light emitting diode D2, and is grounded；
Photodiode D3 plus earth, one end of cathode connecting resistance R12, another termination power VCC1 of resistance R12；Operational amplifier
The power supply of U1A positive termination power VCC1, negativing ending grounding GND；Operational amplifier U1A non-inverting input terminal is grounded by resistance R5, instead
Phase input terminal connects one end of resistance R6 and one end of resistance R7, resistance R6 other end ground connection, and another termination operation of resistance R7 is put
Big device U1A output end；Operational amplifier U1A output end connect one end of capacitor C4, one end of resistance R8, resistance R9 one end and
Transistor Q1 base stage, the other end of capacitor C4, the other end of resistance R8 are grounded, another termination power VCC1 of resistance R9；Transistor
Q1 emitter series resistance R10 is grounded GND, and collector series resistance R11 meets power supply VCC1；The one end capacitor C5 connects power supply
VCC1, the other end are grounded GND；Operational amplifier U1B power supply positive termination power VCC2, negativing ending grounding GND；Operational amplifier U1B
Non-inverting input terminal series resistance R13 connects transistor Q1 collector；Operational amplifier U1B inverting input terminal connects the one of resistance R14
The one end at end and resistance R15, the resistance R14 other end are grounded GND, another termination operational amplifier U1B output end of resistance R15, fortune
It calculates amplifier U1B output end and connects the one end capacitor C7, the capacitor C7 other end is grounded GND；The one end capacitor C6 connects power supply VCC2, separately
One end is grounded GND；Output end of the operational amplifier U1B output end as control circuit, is denoted as port Out_Drive；
The structure of the tuning circuit (5) is that the one end capacitor C8 is connected with the source electrode of field-effect tube T6 and field-effect tube T2, separately
One end is connected with the source electrode of field-effect tube T3 and field-effect tube T4, and an output end as tuning circuit (5), is denoted as port
Another output of the drain electrode of L+, field-effect tube T6 as tuning circuit (5) is denoted as port L-, port L+ and port L- points
It is not connected with the both ends of transmitting coil 4, one end of the grid connection capacitor C9 of field-effect tube T6 and one end of resistance R16, and make
For first input terminal of tuning circuit (5), it is denoted as port D_A, the other end of capacitor C9 and another termination port of resistance R16
L-；Field-effect tube T2 grid connects one end of capacitor C11 and one end of resistance R17, and and second as tuning circuit (5)
Input terminal is denoted as port D_B, and the drain electrode of field-effect tube T2 connects the one end capacitor C10, and the capacitor C10 other end, capacitor C11 are another
End, resistance R17 other end connectivity port L-；One end of the grid connection capacitor C12 of field-effect tube T3 and one end of resistance R19,
And the third input terminal as tuning circuit (5), it is denoted as port D_C, the drain electrode of field-effect tube T3 connects the one end resistance R18；
The resistance R18 other end, the capacitor C12 other end, resistance R19 other end connectivity port L-；The grid of field-effect tube T4 connects capacitor
One end of C14 and one end of resistance R20, and the 4th input terminal as tuning circuit (5), are denoted as port D_D, field-effect tube
The drain electrode of T4 connects the one end capacitor C13, the capacitor C13 other end, the capacitor C14 other end, resistance R20 other end connectivity port L-.
2. one kind according to claim 1 can intelligent tuning energy wireless transmitting system, which is characterized in that it is described
The output DC voltage of AC-DC converting unit (2) is 200V.
3. one kind according to claim 1 or 2 can intelligent tuning energy wireless transmitting system, which is characterized in that it is described
The output frequency of inverter circuit (3) be 50kHz.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110247482A (en) * | 2019-06-20 | 2019-09-17 | 苏州卓尹特机电科技有限公司 | Electromagnetic field generator |
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| US5153497A (en) * | 1991-08-28 | 1992-10-06 | Eiden Glenn E | Circuit for regulating charging of a storage battery by a photovoltaic array |
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| CN107565710A (en) * | 2017-09-08 | 2018-01-09 | 哈尔滨工程大学 | It is automatically adjusted to the magnet coupled resonant type wireless electric power system of frequency optimum traffic |
| CN207283273U (en) * | 2017-06-29 | 2018-04-27 | 深圳普创天信科技发展有限公司 | A kind of wireless charging circuit of portable equipment for surfing the net |
| CN108282030A (en) * | 2018-01-29 | 2018-07-13 | 重庆理工大学 | A kind of adaptive wireless charging method and device |
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| US5153497A (en) * | 1991-08-28 | 1992-10-06 | Eiden Glenn E | Circuit for regulating charging of a storage battery by a photovoltaic array |
| US20170155282A1 (en) * | 2015-11-30 | 2017-06-01 | Qualcomm Incorporated | Enhanced coupling in a wearable resonator |
| CN207283273U (en) * | 2017-06-29 | 2018-04-27 | 深圳普创天信科技发展有限公司 | A kind of wireless charging circuit of portable equipment for surfing the net |
| CN107565710A (en) * | 2017-09-08 | 2018-01-09 | 哈尔滨工程大学 | It is automatically adjusted to the magnet coupled resonant type wireless electric power system of frequency optimum traffic |
| CN108282030A (en) * | 2018-01-29 | 2018-07-13 | 重庆理工大学 | A kind of adaptive wireless charging method and device |
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